A certain freezing process requires that room temperature be lowered from `40^@`C at the rate of `5^@`C every hour. What will be the room temperature 10 hours after the process begins.

When the temperature is increased by 10^(@)C the rate of a reaction increases

The count rate from a radioactive sample falls from 4.0 xx 10^(6) per second to 1.0 xx 10^(6) per second in 20 hours. What will be the count rate 100 hours after the beginning?

The average thermal energy of a oxygen atom at room temperature ( 27^(@)C )

The II A carbonate that decomposes at room temperature of 25^(@) C is

The rate of a reaction increased from 2 units to 54 units due to change in temperature from 27^(@)C to 57^(@)C . What is the approximate temperature coefficient of the reaction.

The temperature in siachen at 5 a.m. was 10 degrees below 0^@C . Six hours later, it had increased to 14^@C . What is the temperature at 11 a.m. ?

Iron exhibits bcc structure at room tempera­ture. Above 900^(@) C, it transforms to fee structure. The ratio of density of iron at room temperature to that at 900^(@) C (assuming molar mass and atomic radii of iron remains constant with temperature) is

The temperature at 12 noon was 10^@ C above zero. If it decreases at the rate of 2^@ C per hour until midnight, at what time would the temperature be 8^0 below zero? What would be the temperature at midnight?

Certain quantity of water cools from 70^(@)C to 60^(@)C in the first 5 minutes and to 54^(@)C in the next 5 minutes. The temperature of the surroundings is